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krek1111 [17]
3 years ago
9

What three types of bedrock are typically found in a rocky shore ecosystem

Biology
1 answer:
a_sh-v [17]3 years ago
4 0
Slate, granite, and quartzite.
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The sum of 3 times value of x and 2 is equal to 4 less than 5 times the value of x. Which equation can be used to find the value
notka56 [123]
3(x+2)=5x-4

Add two and x then multiply by three, set equal to five times x minus four
3 0
2 years ago
(14 points) What nationwide step that greatly reduced dangerous automobile emissions was mandated by the U.S. Clean Air Act?
kirill [66]

Using electricity instead of fossil fuels

8 0
3 years ago
Read 2 more answers
What complementary strand of DNA would be produced from the strand of DNA shown below?<br> TCG GA
mariarad [96]
Complementary pairing goes like this:

A pairs with T and 
C pairs with G. Nothing about this changes unless you get to mRNA (But we won't go into that) :)

So if you have a strand that goes TCG GA then your pairing will look like this:

T A
C G
G C
G C
A T

Hope this helps!! :)
8 0
3 years ago
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What is the ultimate source of energy for most organisms and how is this energy captured so it is useful in a food chain??
Luba_88 [7]
The ultimate source of energy (for most ecosystems) is the sun<span>. The ultimate fate of energy in ecosystems is for it to be lost as heat. Energy and nutrients are passed from organism to organism through the food chain as one organism eats another.</span>
3 0
3 years ago
Memory cells may take the form of B cells. T cytotoxic cells. T helper cells. All of the choices are correct.
topjm [15]

Answer:

Having considered how an appropriate primary immune response is mounted to pathogens in both the peripheral lymphoid system and the mucosa-associated lymphoid tissues, we now turn to immunological memory, which is a feature of both compartments. Perhaps the most important consequence of an adaptive immune response is the establishment of a state of immunological memory. Immunological memory is the ability of the immune system to respond more rapidly and effectively to pathogens that have been encountered previously, and reflects the preexistence of a clonally expanded population of antigen-specific lymphocytes. Memory responses, which are called secondary, tertiary, and so on, depending on the number of exposures to antigen, also differ qualitatively from primary responses. This is particularly clear in the case of the antibody response, where the characteristics of antibodies produced in secondary and subsequent responses are distinct from those produced in the primary response to the same antigen. Memory T-cell responses have been harder to study, but can also be distinguished from the responses of naive or effector T cells. The principal focus of this section will be the altered character of memory responses, although we will also discuss emerging explanations of how immunological memory persists after exposure to antigen. A long-standing debate about whether specific memory is maintained by distinct populations of long-lived memory cells that can persist without residual antigen, or by lymphocytes that are under perpetual stimulation by residual antigen, appears to have been settled in favor of the former hypothesis.

6 0
2 years ago
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